If your heart hasn’t been stirred for God in a while then I’m pretty sure you’ve lost your intimate connection to the vine.  In John 15 Jesus told His disciples to abide in Him and to make sure they stay connected to Him and His work.  It’s crucial for believers to remain connected to God.  But how?

Remain in me, and I will remain in you. No branch can bear fruit by itself; it must remain in the vine. Neither can you bear fruit unless you remain in me.  "I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing.  If anyone does not remain in me, he is like a branch that is thrown away and withers; such branches are picked up, thrown into the fire and burned.  If you remain in me and my words remain in you, ask whatever you wish, and it will be given you.  This is to my Father’s glory, that you bear much fruit, showing yourselves to be my disciples.  "As the Father has loved me, so have I loved you. Now remain in my love.  If you obey my commands, you will remain in my love, just as I have obeyed my Father’s commands and remain in his love.  — John 15:4-10